Siemens SED2 Commissioning Manual

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Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 7 Application examples 26.02.2003
7.4 Application example 4
The speed of a fan motor shall be controlled with the help of the integrated PID controller
− Switching on / off via digital input 1
− External alarm to digital input 2; in the event of an alarm, the fan will be stopped
− Error message via relay output 1
− Indication of operation via relay output 2
Hand
Auto
SED2
0
I
P
Fn
P(1)
Hz
L1
L2
L3
PE
L1 L2 L3
20
9
5
10
2
SED2
uvw
M
3
21
22
23
24
25
6
Fuses
Building Management System
(BMS)
Inspection switch
Fan
5192A04Aen
Error
Com
Run
Com
Relay 1
Relay 2
- Switch on/off
- External alarm
Pressure sensor
DC 0...10 V
7.4.1 Parameter changes
Start with quick commissioning according to application example 1
Par. no. Value Parameter function Function selection
P0003 3 User access level 3 Expert access
P0701(0) 16 Fixed setpoint (direct selection + ON)
P0702(0) 29
Function of digital input 2 in “Auto”
mode
In the event of external alarm, fan will be stopped
P0702(1) 29
Function of digital input 2 in “Hand”
mode
In the event of external alarm, fan will be stopped
P0756(1) 1 Defines analog input 2 DC 0...10 V (default)
P0757(1) 0 Scaling of analog input 2: x1 (Default)
P0758(1) 0 Scaling of analog input 2: y1 (Default)
P0759(1) 10 Scaling of analog input 2: x2 (Default)
P0760(1) 100 Scaling of analog input 2: y2 (Default)
DIP switch setting
ON 1 = analog input 1
OFF
❚❚
OFF = DC 0…10 V
1 2 ON = 0…20 mA
2 = analog input 2
OFF = DC 0…10 V
ON = 0…20 mA

Siemens SED2 Specifications

General

Input Voltage	380-480V AC
Current Rating	Depends on model
Control Type	Digital
Communication	PROFIBUS, PROFINET, Ethernet
Communication Interface	RS485
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature, short circuit
Operating Temperature	0 to +45 °C
Storage Temperature	+70 °C